Air-purifying apparatus.



W. G. R. BRAEMER.

AIR PURIFYING APPARATUS.

APPLICATION TILED JULY 19 1911.

Patented Oct. 8, 1912.

2 SHEETS-SHEET 1.

W. G. R. BRABMER.

AIR PUBIFYING APPARATUS.

APPLICATION FILED JULY 19, 1911.

LOQOAQQ.

Patented 0013. 8, 1912.

2 SHEBTS-SHEET 2.

m. w W o n WU To all whom it may concern Be it known that 1, WILLIAM G. R. BRAE- resident of the cit Camden, State of arns PTEN oEFrcE.

WILLIAM G. n. anAEMEn, or CAMDEN, NEW JERSEY, nssrenon r0 WARREN WEBSTER a comrnnr, A conronarron on NEW JERSEY.

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Specification of genera Patent. Application filed July 19, 1911. Serial No. 639,257.

intense.

Man, a citizen of the United States, and a of Camden, county of e an Im rovement in Airurifying Apparatus, 0 which the following is a speci cation.

invention has reference to air purifying apparatus and consists of certain improvements which are fully set forth in the following specification and shown in the accompanymg drawings which form a part thereof.

The object of my invention is to provide a construction of apparatus which may be from which it may be recovered.

More particularly, my invention is in tended for use in conjunction with a usual form of dust and shaving exhauster and collector, so that the air which is treated to the water spray will have been separated from'the heavier particles of suspended matter before being washed.

,My invention consists in a conduit leading from the mill and through which air is forced under the action of a blower, combined with a centrifugal dust separator for removing heavy sus ended matter on its Way through the .con uit, and an air washing apparatusat the discharge end of the conduit. for treating the partly purified air to water spray for washin therefrom the fine suspended dust or hghter particles which it still contained.

My invention also comprehends many details of construction which, together with the features above specified, will be better understood by reference to the drawings, in which: i

' Figure 1 is a plan View of an air purifying apparatus embodying my invention; Fig. 2 is an elevation of the same; Fig. 3 is aside elevation of the air washer proper with'part in section; and Fig. 4 is a cross sectional elevation of the same on line w-m.

2 is a conduit extending through the building and havin lateral branches 3 leading from the mac ines a which, in their ew Jerse have invent- Patented Oct. 8,1912.

operation, produce the objectionable dust.

which a suction is produced in said conduit '2 to draw the dust to the blower. is forced or blown from the blower 5 The dust through the conduit 0 into the dust separator 7 of any ordinary construction, said dust and suspended matter from the air under centrifugal action. Instead of the air escaping from the separator 7 into the atmosphere, it is delivered into the conduit 9 leading to the air washer. may be provided with a large 'pivoted valve 8 which when in horizontal position closes an outlet to the atmosphere and provides passage for the air to the air washer, but which valve, when turned downward as indicated in dotted lines in Fig. 2, will close off the air from the air washer and permit it to escape into the atmosphere. This valve may be of any suitable construction. It will now be seen that the heavier particles which pass through the blower 5 are separated from the air by the separator 7 and discharged at the bottom, so that the air which passes through the conduit to the air washer will contain in suspension the finer particles only of the dust from the machines; and these time particles may be removed by the water spray to such an extent as to leaae the air in a purified condi-- tion when itescapes through the conduit into the atmosphere.

Referring nowto the air washer apparatus above referred to, 13 is a concrete tank over which is arranged the spray chamber 11 and the eliminator 1 1. The eliminator 14: may be of any ordinary construction, being provided with balllcs against which the moist air is forced and by which the excessive moisture is separated from the air and returned to the tank 13. The spray chamber 11 opens into the bottom of the conduit 9 and is provided with a spray pipe 12 to provide a sheet of spray water through which the dust laden air is required to pass. The water to the spray pipe 12 is supplied by a pump 24 which sucks water from the tank 13 by a suction pipe 25 and delivers it by a supply pipe 23 to the spray pipe 12. The down take of the conduit 9 may termi- 'nate at its extreme bottom in a dust pit 10 where any heavier particles of dust may collect should they escape the separator 7.

This conduit 9 separators being arranged to separate the :portion of the tank and may be raked forward up the incline out of the open portion 17. The tank is provided with an overtiow pipe 19 to restrict the normal level to that 1 "h'"t 113' l 'dwl -'th required. 1 is an; 1s a so provi cu W1 a lateral compartment 22 open to the atmosphere and in which the suction strainer to the suction pipe 25 and also the float valve 20 for supplying fresh water to compensate for that carried oil by the air and the overflow. A channel beam 21 is extended over the tank between the parts 13 and 22 thereof and upon which the sides of the spray chamber sliminato: chamber rest, and extending down into the Water acts as a seal against the escape of air, It will be seen that by this construction the air is confined within the washer above the water in passing from the conduit 9 to the escape conduit 15, while at all times an access may be had to the tank 13 for cleaning purposes,

This apparatus may be utilized solely for cleansing the air of objectionable matter be fore permitting it to escape into the atmosphere, but in certain cases the materials ex.- tracted from the air by the air washer are Valuable and are recovered in the tank 13 for further use.

I have shown. my improved apparatus in the form which I have adopted for commercial practice and which I have found er:- cellently adapted to the objects of my in vention, but I do not restrict myself to the details of construction as these may be mod? tied in various ways without departing from the spirit of the invention.

Having now described my inventlon what I claim as new and desire to secure by Let-- ters Patent, is:

1. In an air purifying apparatus, the combination of a closed conduit leading from a source of dust and particles and dischaiirging into the atmosphere, a blower in the can duit, a separator in constant operative relation in the conduit for separating the heavier particles from the air, an air Washer having a water spray for washing the finer particles of dust from the air immediately before the air escapes into the atmosphere, and means for directing the air leaving the separator directly into the atmosphere or causing it to pass through the conduit to the air washer.

2. In air purifying apparatus, the combinoc cee nation of a conduit for conveying air from a source of dust and delivering the purified air to the atmosphere, with means for separating the heavier particles of dust from the air passing through the conduit, said means consisting of an air washing chamber, an inclosed tank below the air washing chamber and having an inclined bottom, said tank having a portion opening laterally to the atmosphere and communicating at its bottom with the deepest part of the inclined bottom of the inclosed tank, and a water seal at the upper part of the tank and between. the inclosed and open portions thereof, i i

S, In air purifying apparatus, the combination of a conduit for conveying air from a source of dust and delivering the purified air to the atmosphere, with means for separating the heavier particles of dust from the air passing through the conduit, said means consisting of an air washing chamber, an inclosed tank below the air washing chamher and having an inclined bottom, said tank having a portion opening laterally to the atmosphere and provided with an inclined bottom whose lowest portion communicates with the deepest part of the inclined bottom the inclosed tank whereby the collected dirt may be readily raked out of the inclosed tank without interfering with the normal operation of the apparatus, and a water seal at the upper part 'of the tank and between the inclosed and'open portions thereof. i

l. In an air purifying apparatus, a Water 6 tank having an inclos ed portion and a portion open to the atmosphere, the bottom of the tank being inclined and the inclination leading from below the inclosed portion thereof and extending in asloping manner 105 to the upper part of the open portion thereof, whereby the collected dust and dirt may be raked from: the inclosed portion of the tank without interference with the continu-. ity of the purifying operation upon the air, 1m in combination with a water spray chamber above the inclosed portion of the tank, means for sprayin water within the spray chamber above the inclosed portion of'the tank, means for forcing air through the spray 5 chamber and a conduit to lead the purified air to the place of discharge.

5. in an air purifying apparatus, a water tank having an inclosed portion and a portion open to the atmosphere, the bottom of 12 the tank being inclined and the inclination leading from below the inclosed portion thereof and extending in a sloping manner to the upper-part of the open portion thereof, whereby the'coll e ct/ed dust and dirt may be raked from the inclosed portion of the V tank without interference with the continuity of the purifying operation upon the air and said tank also having a lateral compartment open to the atmosphere, in-cqm- 3 30 hination With a Water spray chamber above the inclosecl portion of the tank means -tor spraying Water Within the spray chmnher above the inolosed portion of the tank,

means for forcing air through the spray chamber and a conduit to lead the purified air to the place of discharge, means lor automatically supplying fresh water to the hiternl compartment of the tank, an overflow 10 from the inclosed portion of the tank, and

/VM. G. R. BRAEMER.

\Vitnessrs it. ill. KELLY,

D. J. Motlnosmsr. 

